EP0463619A1 - Procédé de l'assainissement de ponts - Google Patents

Procédé de l'assainissement de ponts Download PDF

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Publication number
EP0463619A1
EP0463619A1 EP91110613A EP91110613A EP0463619A1 EP 0463619 A1 EP0463619 A1 EP 0463619A1 EP 91110613 A EP91110613 A EP 91110613A EP 91110613 A EP91110613 A EP 91110613A EP 0463619 A1 EP0463619 A1 EP 0463619A1
Authority
EP
European Patent Office
Prior art keywords
mushroom
bridge
plates
support plate
plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP91110613A
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German (de)
English (en)
Other versions
EP0463619B1 (fr
Inventor
Herbert Dipl. Ing. Dr. Geisler
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Individual
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Individual
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Publication date
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Publication of EP0463619A1 publication Critical patent/EP0463619A1/fr
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Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D22/00—Methods or apparatus for repairing or strengthening existing bridges ; Methods or apparatus for dismantling bridges

Definitions

  • the invention relates to a method for the rehabilitation of bridges, in particular highway bridges, from mushroom elements lined up in a row, each having a shaft and a mushroom plate projecting on all sides, a first transverse edge of each mushroom plate having a support bracket for the stepped, second transverse edge of the subsequent mushroom plate, and between each A joint construction is provided for two mushroom plates.
  • the invention has therefore set itself the task of creating a method that maintains the load-bearing capacity of the support brackets of the mushroom joints permanently with an economically justifiable effort, or increases an already reduced load-bearing capacity of the mushroom structure afterwards. If necessary, it should also be possible to widen the bridge.
  • this is achieved in that the bridge structure formed by the mushroom slabs is supplemented by a reinforced concrete structure extending over the mushroom joints.
  • the additional concrete construction changes the mushroom bridge in a way that aligns its service life with that of other bridge structures by eliminating the contradictory double function of the mushroom joints, namely that of a wearing part with stability requirements.
  • a first embodiment of the invention provides that at least one carriageway support plate made of reinforced or prestressed concrete spanning several mushroom plates is applied to the mushroom slabs as a supplementary concrete construction.
  • Such a procedure is chosen in particular when the damage to the support bracket and the support elements is still slight and there is sufficient carrying reserve.
  • the access of the roadway sewage into the mushroom joints and the further corrosion of the support bracket and the support elements is excluded.
  • the existing roadway structure is preferably removed, a separating layer is placed over the exposed mushroom plates, and the new roadway support plate is produced thereon.
  • the separating layer on the one hand provides a seal to the mushroom elements and on the other hand provides the necessary expansion path for the new carriageway support plate if a lower layer of fleece, a medium plastic film and an upper layer of fleece are applied as the separating layer. For example, plastic fleeces are used for this.
  • the new carriageway support plate can be connected to a mushroom plate so that an expansion fixed point is formed.
  • the tension reinforcement of the mushroom slab has so-called windows, so that the roadway slab can be integrated relatively easily.
  • the fixed point of expansion is preferably the mushroom element closest to the elastic center of gravity of the bridge system or, in the case of further roadway support plates, the mushroom element closest to the elastic center of gravity of the respective section.
  • a single carriageway support slab can be built up to a bridge length of approximately 150 m. With larger bridge lengths, each transverse joint is formed between the carriageway support plates, in particular above the shaft of a mushroom element. In a further preferred embodiment it is provided that the carriageway support on the two bridge abutments plate extends beyond the bridge abutment so that no intervention in the existing bridge abutment is necessary.
  • the production of the new carriageway support plate made of reinforced or prestressed concrete in the thickness determined according to structural and structural requirements also enables a possible widening of the bridge in a simple manner by protruding the or each carriageway support plate over the longitudinal edge of the mushroom slabs.
  • a second embodiment of the invention provides that, as a supplementary concrete structure, a beam is made underneath each support bracket on which the two mushroom plates be supported.
  • the support of the girder on the shafts of the mushroom elements can be carried out, for example, via oblique struts or longitudinal beams which are anchored to the shafts.
  • a support sleeve for the beam supports is preferably produced on the shaft, the shafts of the mushroom elements being able to be reinforced, if necessary, by additional external or internal pillars if the carrying reserves of the shafts are too small.
  • FIG. 1 shows the side view of a highway bridge consisting of mushroom elements
  • Fig. 2 is a plan view of the bridge
  • Fig. 3 shows a cross section along the line 111-111 in Fig. 1
  • Fig. 4 shows a cross section along the line IV IV in FIG. 1
  • FIG. 5 a previous mushroom joint
  • FIG. 6 a section corresponding to FIG. 4 through a freeway bridge renovated by means of the first embodiment of the method
  • FIG. 7 corresponding to FIG. 5 the mushroom joint of the renovated freeway bridge from FIG 6 and
  • FIGS. 8 to 13 show different variants of the second embodiment of the renovation method
  • FIGS. 8, 10 and 12 each showing schematic longitudinal sections of a bridge section
  • FIGS. 9, 11 and 13 each showing top views of the additional concrete structure .
  • a highway bridge according to FIGS. 1 and 2 is composed of mushroom elements 1, the central area comprising so-called semi-mushrooms, which comprise only one directional lane.
  • Each mushroom element consists of a shaft 3 anchored in the ground, in particular a hollow shaft 3, and a mushroom plate 4.
  • the mushroom plates 4 Transverse to the longitudinal direction of the bridge, the mushroom plates 4 generally protrude by the same amount on both sides of the shaft axes 10. In contrast, in the longitudinal direction of the bridge, the mushroom plates 4 protrude unevenly over the shaft axes 10.
  • the first edge of the mushroom plates 4, which runs transversely to the roadway, is designed as a support bracket 12 for the second edge 13 of the adjoining mushroom plate 4 and in particular is provided on the shorter cantilever arm, 4 support elements 14 being inserted between the two mushroom plates.
  • the resulting mushroom joints 11 compensate for the extensions and shortenings of the mushroom plates resulting from the atmospheric temperature changes, but also for dynamic movements caused by traffic.
  • the roadway structure 6 thus has a joint construction 15 on each mushroom joint 11, which is intended to seal off the mushroom joint 11 and to protect the supports against the roadway sewage.
  • all of the mushroom joints 11 can thereby be permanently protected and removed from attack by atmospheres that are aggressive against concrete and / or steel, by the entire roadway structure 6 except for the raw structure formed by the mushroom plates 4 is removed, the top of which is cleaned by sand and / or water blasting.
  • a lower fleece 22 is applied over all mushroom joints 11 and this is covered by a plastic film 23, so that moisture access to the mushroom plates 4 and in particular to the support brackets 12 is excluded.
  • the plastic film 23 then receives an upper fleece cover 24, on which a cover strip 25 is placed in the area of mushroom joints 11.
  • a new carriageway support plate 20 made of reinforced or prestressed concrete is applied in the thickness required according to structural and structural laws and rules across all mushroom joints 11 across the entire bridge width. If necessary, the new carriageway support plate 20 can be connected to the mushroom plate 4 on a mushroom element 1, so that an expansion fixed point is created.
  • the new carriageway support plate 20 can also be provided on the longitudinal edges with longitudinal edge beams and with a central rib 8 between the two directional carriageways, which accommodate the necessary guiding devices.
  • the new carriageway support plate 20 is cantilevered over the longitudinal edge, whereby at the same time there is the possibility of the carriageway widening.
  • a steel catwalk construction can also be arranged.
  • the road surface 18 is then applied to the new roadway support plate 20 in its respectively required construction and the required composition.
  • the generally customary edge caps 7 are then arranged on the longitudinal edge.
  • the formation of a single new carriageway support plate is particularly favorable up to a length of 150 meters.
  • several roadway support plates 20 are separated by a joint 19 (FIG. 8), each of which lies above the shaft 3 of a mushroom element 1, with each expansion fixed point, i.e. the connection between the roadway support plate 20 and the mushroom plate 4, each above the middle between two joints 19 lying shaft 3 is provided.
  • each expansion fixed point i.e. the connection between the roadway support plate 20 and the mushroom plate 4
  • each above the middle between two joints 19 lying shaft 3 is provided.
  • each shaft 3 is provided with a sleeve 26 made of reinforced or prestressed concrete, on which four support structures 27 are arranged.
  • Two longitudinal members 28 are placed on each support structure 27, which span the bridge fields from shaft 3 to shaft 3 under the mushroom plate 4.
  • one beam 30 is arranged under the mushroom joint 11 per bridge field and, as shown in dashed lines, a second beam 30.
  • the beams 30 are expediently made of reinforced concrete or prestressed concrete.
  • the additional support structures shown in FIGS. 8 to 13 essentially convert the mushroom bridge into a conventional bridge with supporting structures supported on pillars, so that the existing roadway structure 6 and the joint structure 15 can be retained.
  • the support bracket 12 and the support elements 14 are then still exposed to corrosion, but the stability of the bridge is no longer at risk.
  • the application of new carriageway slabs 20 is therefore not necessary or not necessary at the same time, as a result of which the renovation costs can be kept relatively low. Later application of the new roadway slabs 20 is of course possible at any time.
  • the refurbishment method according to the invention also allows traffic to be maintained at least on one side.

Landscapes

  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Bridges Or Land Bridges (AREA)
  • Road Paving Structures (AREA)
EP19910110613 1990-06-27 1991-06-26 Procédé de l'assainissement de ponts Expired - Lifetime EP0463619B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AT136590A AT396139B (de) 1990-06-27 1990-06-27 Verfahren zur sanierung von bruecken
AT1365/90 1990-06-27

Publications (2)

Publication Number Publication Date
EP0463619A1 true EP0463619A1 (fr) 1992-01-02
EP0463619B1 EP0463619B1 (fr) 1994-03-23

Family

ID=3512305

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910110613 Expired - Lifetime EP0463619B1 (fr) 1990-06-27 1991-06-26 Procédé de l'assainissement de ponts

Country Status (3)

Country Link
EP (1) EP0463619B1 (fr)
AT (1) AT396139B (fr)
DE (1) DE59101222D1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU675602B2 (en) * 1994-12-16 1997-02-06 Sho-Bond Corporation Method for strengthening a concrete deck
SG80511A1 (en) * 1994-12-16 2001-05-22 Sho Bond Corp Method for strengthening a concrete deck
ES2426154R1 (es) * 2011-11-04 2014-01-16 Esteyco S.A.P. Conjunto de tablero y pila de viaducto

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH359731A (de) * 1956-10-31 1962-01-31 Dyckerhoff & Widmann Ag Brückenartig ausgebildete Hochstrasse aus Beton
DE1239346B (de) * 1965-06-18 1967-04-27 Theodor Kueppers Baugesellscha Verfahren zum abschnittsweisen Bau von mehrfeldrigen Spannbetonbruecken
DE1258441B (de) * 1962-06-01 1968-01-11 Dyckerhoff & Widmann Ag Brueckenartig ausgebildete Hochstrasse aus Stahlbeton oder Spannbeton
FR1557442A (fr) * 1967-03-25 1969-02-14
DE1929702B1 (de) * 1969-06-11 1970-08-06 Dyckerhoff & Widmann Ag Mehrfeldriges Brueckentragwerk aus Stahl- oder Spannbeton mit im Brueckenquerschnitt mittig angeordneten Stuetzen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT375984B (de) * 1981-08-27 1984-09-25 Kratochvil Guenter Fahrbahnuebergang
EP0149697A1 (fr) * 1984-01-23 1985-07-31 Kober AG Couvre-joint pour joints de dilatation dans des chaussées, en particulier dans des tabliers de pont

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH359731A (de) * 1956-10-31 1962-01-31 Dyckerhoff & Widmann Ag Brückenartig ausgebildete Hochstrasse aus Beton
DE1258441B (de) * 1962-06-01 1968-01-11 Dyckerhoff & Widmann Ag Brueckenartig ausgebildete Hochstrasse aus Stahlbeton oder Spannbeton
DE1239346B (de) * 1965-06-18 1967-04-27 Theodor Kueppers Baugesellscha Verfahren zum abschnittsweisen Bau von mehrfeldrigen Spannbetonbruecken
FR1557442A (fr) * 1967-03-25 1969-02-14
DE1929702B1 (de) * 1969-06-11 1970-08-06 Dyckerhoff & Widmann Ag Mehrfeldriges Brueckentragwerk aus Stahl- oder Spannbeton mit im Brueckenquerschnitt mittig angeordneten Stuetzen

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU675602B2 (en) * 1994-12-16 1997-02-06 Sho-Bond Corporation Method for strengthening a concrete deck
SG80511A1 (en) * 1994-12-16 2001-05-22 Sho Bond Corp Method for strengthening a concrete deck
ES2426154R1 (es) * 2011-11-04 2014-01-16 Esteyco S.A.P. Conjunto de tablero y pila de viaducto

Also Published As

Publication number Publication date
ATA136590A (de) 1992-10-15
AT396139B (de) 1993-06-25
DE59101222D1 (de) 1994-04-28
EP0463619B1 (fr) 1994-03-23

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